Sa Kaeo weather in May

In May, Sa Kaeo sees average daytime highs of 34°C and overnight lows near 26°C, with 159 mm of rain across 23.2 wet days and about 12.6 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 33°C by the end. The sky is clear or mostly clear about 8% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 42 min by month's end. Set against the rest of the year, May is Sa Kaeo's 8th-clearest and 9th-windiest month. For the whole year in context, see Sa Kaeo's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
159 mm
23.2 wet days
Daylight
12 h 36 min
5:49 AM – 6:27 PM
Cloud cover
80%
8th clearest
Wind
7 km/h
9th windiest
Solar energy
5.45 kWh/m²
Travel score
2.1
out of 10

Sa Kaeo is town in Sa Kaeo province, Thailand.

Air quality
Elevated
PM2.5 20 µg/m³ · 2019
Founded
1956

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 33°C by the end.

A typical May day in Sa Kaeo reaches about 34°C in the afternoon and slips back to 26°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 36°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13526
23526
33426
43426
53426
63426
73426
83426
93426
103426
113426
123426
133426
143426
153426
163426
173326
183326
193326
203326
213326
223326
233326
243326
253326
263326
273326
283326
293326
303326
313326

How May really feels in Sa Kaeo

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sa Kaeo weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 21°122.611.35.1
Feb33° / 22°183.511.54.1
Mar34° / 24°519.111.93.0
Apr35° / 26°7915.112.32.3
May34° / 26°15923.212.62.1
Jun32° / 26°20325.512.82.3
Jul32° / 25°23027.712.72.4
Aug31° / 25°25027.912.52.4
Sep31° / 25°27826.812.12.5
Oct31° / 24°1711911.73.4
Nov31° / 23°294.911.44.8
Dec31° / 21°61.411.25.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 81%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23664
33565
43466
53268
63169
72971
82872
92674
102476
112377
122179
132080
141981
151882
161684
171585
181387
191288
201189
211090
221090
23991
24991
25991
26892
27892
28892
29892
30793
31793

Chance of precipitation in May

Any precipitation

Sa Kaeo gets around 159 mm of rain over 23.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 75% and peaks near 85% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
162
263
364
465
565
666
767
868
970
1071
1172
1274
1375
1476
1577
1678
1778
1879
1979
2080
2180
2280
2381
2481
2581
2682
2782
2883
2983
3084
3185

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the miserable band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
12080
21981
31981
41882
51783
61684
71585
81486
91486
101387
111288
121189
131189
141090
15991
16892
17892
18793
19793
20694
21694
22595
23595
24496
25496
26496
27397
28397
29397
30397
31298

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:54 AM to 5:47 AM, and sunset from 6:23 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:546:23
212.55:546:24
312.55:536:24
412.55:536:24
512.55:536:24
612.55:526:25
712.65:526:25
812.65:516:25
912.65:516:25
1012.65:516:26
1112.65:506:26
1212.65:506:26
1312.65:506:26
1412.65:496:27
1512.65:496:27
1612.65:496:27
1712.65:496:27
1812.75:486:28
1912.75:486:28
2012.75:486:28
2112.75:486:29
2212.75:486:29
2312.75:476:29
2412.75:476:29
2512.75:476:30
2612.75:476:30
2712.75:476:30
2812.75:476:31
2912.75:476:31
3012.75:476:31
3112.75:476:32

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.45 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.02 kWh/m² in April across the year — May's 5.45 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in May

Hazard calendar for Sa Kaeo

In seasonPeak

In May, Sa Kaeo sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Sa Kaeo's monsoon runs May–October, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Sa Kaeo?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.1
Sightseeing
12th-best month of the year
4.1
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Sa Kaeo.

What to pack for Sa Kaeo in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Sa Kaeo sees daytime highs around 34°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

UV index in Sa Kaeo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sa Kaeo peaks around August 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 15UV 14Nov 22UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec9Very high

Air quality in Sa Kaeo in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Sa Kaeo is worst in February — around 32 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 15 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Sa Kaeo's WHO annual average of 20 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateFeb 1731 µg/m³Dec 1015 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb32Moderate
Mar28Moderate
Apr22Moderate
May17Moderate
Jun15Moderate
Jul17Moderate
Aug17Moderate
Sep18Moderate
Oct18Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Sa Kaeo?

Sa Kaeo sits at 13.8°N, 102.1°E, 41 m above sea level, in Thailand. The nearest listed city is Wang Nam Yen, 36 km away.

Topography around Sa Kaeo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sa Kaeo.

Within 3 km, the terrain around Sa Kaeo has only modest variations in elevation — a maximum elevation change of 20 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 162 m; within 80 km, large variations in elevation — a maximum elevation change of 960 m.

The land around Sa Kaeo is covered by trees (52%) and cropland (25%) within 3 km, trees (52%) and cropland (38%) within 16 km, and trees (60%) and cropland (35%) within 80 km.

3 km
20 m
16 km
162 m
80 km
960 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Wang Nam Yen 36 km · Kabin Buri 41 km · Na Di 46 km · Aranyaprathet 48 km · Poipet 56 km · Si Maha Phot 63 km · Prachantakham 66 km · Ou Bei Choan 72 km

Thailand travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$8,057
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
4.8
per 100k, 2011
Road deaths
32.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 402
Religion
Buddhist 93%Muslim 5%Christian 1%other 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sa Kaeo (13.8141°, 102.0722°, elevation 41 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).